Belimo 20DTS-1P3 - capillary frost protection thermostat

Belimo 20DTS-1P3 frost protection thermostat

The device monitors the temperature of water and air heaters in ventilation and air-conditioning systems. The active capillary indicates a risk of freezing via a DC 0...10 V output with start-up function and a single-pole potential-free changeover contact.

Key features and specifications

• Capillary length: 2 m; minimum active capillary length: 250 mm.
• Rated voltage: AC 24 V; rated voltage range: AC 19.2...26.4 V.
• Temperature measuring range: 0...15°C [32...59°F]; factory setting: 5°C [41°F].
• Switching point setting range: 1...10°C.
• Temperature sensor output: 0...10 V (≙ 0...15°C); valve control output: 0...10 V (max. 1 mA).
• Changeover contact: max. switching current 6(2) A @ AC 230 V / 6 A @ DC 24 V.
• Operating modes: automatic, manual and test. Automatic or manual reset is available after frost protection activation.
• Indicators: LED and 2-digit seven-segment display.
• Electrical connection: spring terminals max. 2.5 mm²; IEC/EN IP42 protection rating.

The package includes a mounting kit with 6 brackets, type A-22D-A08.